Water-motor



1. R. HAMILTON.

` wma Moon. APPLICATION FILED AUGhG, 9|8.

Patented Jah. 13, 1920.

f; TED STATES PATENT o'FFioE,

JOHN R. HAMILTON, OF YONKERS, NEW YORK, ASSIGNOR TO AUTOMATIC SPRINKLER COMPANY OF AMERICA, 0F NEW YORK, N. Y., A CORPORATION OE` NEW-YORK.

WATER-MOTOR.

To all whom it may concern.'

Be it known that I, JOHN R. HAMILTON, a citizen of' the United States, residing at Yonkers, county of Westchester, State of New York, have made a certain new and useful Invention Relating to Water-Motors, of which the following is a specllication, taken in connection with the accompanying drawing, which forms part of the same.

The invention in this case, which is a partial continuation of my co-pending application, Serial No. 98,756, `filed May 20, `1916, relates especially to water motors particularly adapted for use with the alarm gongs of automatic sprinkler apparatus..rv During the operation of such apparatus in the event of fire, a jet or stream of water is supplied to the motor to operate the same and thus sound the connected alarm gong or other signal to call attention to the fire or emergency condition of the apparatus. The motor may advantageously comprise a sectional motor casing, the motor wheel and connected motor sha-ft being supported in bearings permanently mounted in the main casing section which also carries the nozzle, so that the coperating removable casing section may be removed and adjusted without disturbing the motor bearings or the alinement of the wheel with the nozzle. The nozzle is preferably upwardly directed toward the motor wheel which minimizes the undesirable entrance of dirt and the nozzle is protected by one or more screens or perforated shields deflecting large particles of rust or dirt to the bottom of the nozzle chamber where they will not interfere with the passage of the motor fluid to the nozzle and may be conveniently removed.

In the illustrative embodiment of the invention shown in the drawings, Figure 1 is a transverse section through the motor and shaft, and

Fig. 2 is a longitudinal section thereof taken substantiallyalong the line 2-2 of Fi l. Y

ign the illustrative embodiment shown in the drawings the motor may comprise a sectional casing in which the casingcover 1 is joined to the motor casing 2 at a point substantially above the bearings of the motor so that they are not in any way disturbed when the casing cover is removed and con-.

sequent derangement or cramping of vthe bearings is thus prevented., These two cas- Specicaton of Letters Patent. Patented J 311,13, 1920,

Application inea August c, 191s. serial No. 248,506.

ing members are of course rigidly secured ytogether asbyl the bolts indicated, and a tight joint may be'made between them as by the packing 3. The motor shaft 13 may be mounted in suitable bearings within the lower section or motor casing 2, these bear-i ings being, if desired, suitable self-alining bearings: 15 which may be graphite impregnated.' In ysome cases these bearings may with advantagey be loosely or swivelingly mounted directly in the motor casing as by being mounted in the cylindrical or other suitable .sockets 16, thereon and loosely retained in position as by the retainer screws 17. The wheel 11. mayv be rigidly mounted on this motor shaft as by a suitable key or pin 52 engaging the shaft and the wheel hub, `and buckets 12` similar to the Pelton type may be arranged onk the wheel so as to cooperate most advantageously with the motor nozzle.

The coperating motor nozzle, such as 9, is preferably arranged in a somewhat upwardly inclined position adjacent the bottom of thecasing where it is not only supported by the permanently mounted section of the casing, but isalso more likely to maintain itsk continued clear andleifective condition. v The nozzle as indicated may be readily screwed into the threaded nozzle hole '49 in the casing by turning the nut v57 on theek-` tension arms 56 formed on this nozzle, which may have slipped over the arms so as'to be mounted in connection therewith, the cylindrical or other screen 8, removing any dirt or impurities from the motive fluid before it enters the nozzle to act on the wheel and nally be discharged from the casing through the Waste pipe 14. If desired, va suitable perforated shield or guide screen, such as 6, may be secured to the removable cap 55 or otherwise mounted substantially annularly around this screen within the nozzle casing 4 thus vforming the nozzle drain chamber 5. The supply pipe 10 may communicate with the chamber at any convenient point preferably adjacent the supporting wall as indicated so that the water or other motive fluid passes up around and through the guide screen and then throuov the nozzle screen 8 before entering the nozzIe, particles of dirt or the like thus being more certainly deected into the chamber below from which they may be' removed when the plug 7 is taken out,

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The motor casing may be mounted in any suitable way as by forming a motor bracket 22 integral with the loweror main casing section 2 and this motor bracket may be bolted or otherwise secured to the wall 47 in any desired way. For some purposes it is4 desirable to have an alining or connector tube 23 extend tl'irough this wall and the motor bracket may be connected thereto by having this tube pass through a suitable aperture in the ali'ning collar 53 in this brarket while a holding nut 2l screwed on the end of the tube holds the bracket thereto. The motor shaft 13 may have a suitable coupling 19 pinned or otherwise rigidly se cured thereto so as to cooperate with the driving or alarm shaft 24` which may yeX- tend into the square or other polygonal hole 20 in the coupling and through this alining yconnecting tube 23 to drive the connected gong or other alarm device not shown in the drawing which may be mounted on the outside of the wall, for instance. It is also advantageous to have the dust case or shield 50 bridge the space between this coupling and the connector tube to prevent dirt or dust collecting on the adjacent moving parts, and this dust case may be bolted to the casing cover as by the one or more bolts 51 so as to be removable therewith when the motor wheel is inspected or cleaned.

This invention has been described in connection with a number of illustrative embodiments, parts, forms, sizes, proportions, materials and arrangements, to the details of p which disclosure the` invention is not of course to be limited, since what is claimed as new and what is desired to be secured by Letters Patent is set forth in the appended claims:

1. In water motors adapted for alarm gongs, a sectional motor casing, a motor wheel and connected motor shaft supported in bearings in the lower section of said motor casing, said casing having a removable topsection'above said bearings, a nozzle chamber-formed .adjacent the bottom of said casing, a nozzle projecting through the wall of said chamber to coperate with said wheel, ya tubular screen in said chamber coperating with the inlet end of said nozzle, a supply pipe connected to said chamber at the side of said chamber and screen, a deflecting shield located. between said vscreen and said supply pipe to deiiect dirt, etc., to the bottom of said nozzle chamber, and a removable plugin the bottom of said nozzle chamber.

2. In water motors, a motor casing comprising a nozzle chamber and nozzle, a removable casing cover coperating with said motor casing,

said motor casing being formed with cylindrical bearing sockets eX- tending transversely through the one piece casing adjacent said casing cover, self-alining bearings in said bearing sockets and retor wheel and connected motor shaft coperating with said bearings.

3. In water motors, a sectional motor casing to substantially inclose a motor wheel, a motor wheel and connected motor shaft supported in self-alining bearings in the main section4 of said motor casing, said casing having a removable section beyond said bearings, a nozzle chamber formed adjacent the bottom of said casing, anupwardly discharging nozzle projecting through the wall of said chamber to cooperate with said wheel, arms and a connected operating nut connected to said nozzle and extending into said chamber, a screen in said chamber removably supported by saidv yarms to coperate with the .inlet end of said nozzle, a cap removably closing the end of said chamber opposite said nozzle anda supply pipe connection communicating with said chamber.

4:. In water motors, a motor casing to substantially inclose a motor wheel, a motor wheel and connected motorshaft supported in bearings in said motor casing, a nozzle chamber formed adjacent the bottom'of said casing, a nozzle projecting` through the wall of said chamber to cooperate with said;` wheel, arms and a connected operating device connected to said nozzle and extending into said chamber, a screen in said chamber removably supported by said arms to cooperate with the inlet end of said nozzle, a cap removably closing the end of said chamber opposite said nozzle and a supply pipe connection communicating with said chamber.

5. In water motors, a motor casing to sul ioo' stantially inclose al motor wheel, a motor casing, an upwardly discharging nozzle projecting through the wall of said chamber to cooperate with said wheel, arms and a connected operating device connected to said nozzle and extending into saidchamber, a screen in said chamber removably supported by said arms to cooperate with the inlet end of said nozzle, a cap removably-closing the end of said chamber opposite said nozzle, a supply pipe connection communicating with said chamber, and a deflecting shield 'in said chamber between said supply pipe connection and said screen to deflect therefrom dirt, etc.

6. In water motors, a sectional motor casing, a motor wheel and connected motor shaft supported in bearings in the main section of said motor casing and adjacent the edge thereof, said casing having a removaccessto yand removal of said wheel, a` nozzle projecting through the Wall of the main section of said casing to cooperate With said Wheel, and a screened supply pipe connection communicating with the inlet end of said nozzle.

7 In Water motors, a sectional motor casing, a motor Wheel and connected motor shaft Supported in bearings in the main section of said motor casing, said casinghaving a removable section beyond said bearings to permit access to and removal of said Wheel, a nozzle chamber formed adjacent the bottom of said casing, a nozzle projecting through the Wall of said chamber, a

screen coperating With the inlet vend of said nozzle and a supply pipe connected to said chamber adjacent said screen.

8. In Water motors, ka sectional motor casing, a motor Wheel and connected motor shaift supported in sel-alining bearings permanently and loosely retained in bearing sockets inthe main section of said motor casing, said casing having a removable section beyond said bearings, a nozzle projecting through the Wall of the main section of said casing to coperate with said Wheel, and a supply pipe connection communicatin@` With the inlet end of said nozzle. j

JOHN R. HAMILTON. 

